<!DOCTYPE html>
<html>

<head lang="en">
    <meta charset="UTF-8">
    <title></title>
    <style>
        * {
            margin: 0;
            padding: 0
        }

        ul {
            list-style: none
        }

        .box {
            width: 600px;
            margin: 100px auto;
            border: 1px solid #000;
            padding: 20px;
        }

        textarea {
            width: 450px;
            height: 160px;
            outline: none;
            resize: none;
        }

        ul {
            width: 450px;
            padding-left: 80px;
        }

        ul li {
            line-height: 25px;
            border-bottom: 1px dashed #cccccc;
            display: none;
        }

        input {
            float: right;
        }

        ul li a {
            float: right;
        }
    </style>
    <script src="../js/jquery.min.js"></script>
    <script>
        $(function () {
            $('.btn').on('click', function () {
                const li = $("<li></li>")
                li.html(`${$('.txt').val()}<a href='javascript:;'> 删除</a>`)
                $('ul').prepend(li)
                li.slideDown()
            })
            $('ul').on('click', 'a', function () {
                $(this).closest('li').slideUp(function () {
                    //等动画执行完毕再去通过回调函数删除该节点
                    $(this).remove()
                })
            })
        })
    </script>
</head>

<body>
    <div class="box" id="weibo">
        <span>微博发布</span>
        <textarea name="" class="txt" cols="30" rows="10"></textarea>
        <button class="btn">发布</button>
        <ul>
        </ul>
    </div>
</body>

</html>